40978167 has 8 divisors (see below), whose sum is σ = 54915696. Its totient is φ = 27179712.

The previous prime is 40978159. The next prime is 40978199. The reversal of 40978167 is 76187904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40978167 - 2³ = 40978159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40978127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34078 + ... + 35259.

It is an arithmetic number, because the mean of its divisors is an integer number (6864462).

Almost surely, 2^40978167 is an apocalyptic number.

40978167 is a deficient number, since it is larger than the sum of its proper divisors (13937529).

40978167 is a wasteful number, since it uses less digits than its factorization.

40978167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69537.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 40978167 is about 6401.4191395346. The cubic root of 40978167 is about 344.7605059128.

The spelling of 40978167 in words is "forty million, nine hundred seventy-eight thousand, one hundred sixty-seven".